NC0041866_Draft Permit_20231114

ROY COOPER
Governor
ELIZABETH S.BISER ` 4 R^ I
Secretary `ir au.w • -
RICHARD E.ROGERS,JR. NORTH CAROLINA
Director Environmental Quality
November 14, 2023
Mr. Robert K. Draughn
Surry County Schools
P.O. Box 364
Dobson,NC 27017-0364
Subject: Draft NPDES Permit NC0041866
Mountain Park Elementary School WWTP
Grade WW-1 WPCS
Surry County
Dear Permittee:
The Division has reviewed your request to renew the subject permit. Enclosed with this letter is a copy of the draft
permit for your facility. Please review this draft carefully to ensure your thorough understanding of the
information,conditions,and requirements it contains.
The draft permit includes the following significant changes from the existing permit:
➢ Electronic data submission requirements have been updated.
The NPDES standard conditions(Parts II, III, and IV)that are a part of the permit are not included in this draft
document(cover, map, and Part I). The conditions are the same as in your current permit except that agency and
division names have been updated. The latest version is available at https://bit.ly/3k5NFaL and can be viewed
online or downloaded as a PDF file.
With this notification, the Division will solicit public comment on this draft permit by publishing a notice in
newspapers having circulation in the general Surry County area, per EPA requirements. Please provide your
comments,if any,to me at the e-mail address below no later than 30 days after receiving this draft permit.
Following the 30-day public comment period,the Division will review all pertinent comments and take
appropriate action prior to issuing a final permit. If you have questions concerning the draft, please contact me at
[e-mail].
Sincerely,
Z11#41°- ' / )7-
Environmental Speci al i st I I
NPDES Compiia ceand Expedited Permitting
D E Q NorthCarolina Drtm of Envm Q Dsio
512 NortCarolih Salisburyepa Streetent 11617 Mailiron Service Centeruality1 I Raleigh,ivinof North
Water CarolinaResources 27699-1617
�r�;\ �/ 919.707.9000

Permit NC0041866
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SY STEM
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the
Federal Water Pollution Control Act, as amended,the
Surry County Board of Education
is hereby authorized to discharge wastewater from a facility located at the
Mountain Park Elementary School WWTP
505 Mountain Park Road
Surry County
to receiving waters designated as an unnamed tributary to Flat Branch in subbasin 03-07-02 of the
Yadkin-Pee Dee River Basin in accordance with effluent limitations, monitoring requirements, and
other conditions set forth in Parts I, II, III, and IV hereof.
This permit shall become effective
This permit and authorization to discharge shall expire at midnight on December 31, 2028.
If the permittee intends to continue to discharge at the facility beyond the term of this permit, a
renewal application must be submitted no later than July 4, 2028 (180 days before the expiration of
this permit).
Signed this day
y
Richard E. Rogers, Jr., Director
Division of Water Resources
By Authority of the Environmental Management Commission
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Permit NC0041866
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked As of this
permit issuance, any previously issued permit bearing this number is no longer effective. Therefore, the exclusive authority
to operate and discharge from this facility arises under the permit conditions, requirements, terms, and provisions included
herein.
The Surry County Board of Education is hereby authorized to:
1. Continue to operate an existing 0.0035 MGD wastewater treatment system that includes the
following components:
• Septic tank
• Dosing chamber
• Recirculating sand filter
• 3,000 gallon holding tank
• Dual ultraviolet disinfection units
• Backup tablet chlorine disinfection
This facility is located at the Mountain Park Elementary School WWTP (505 Mountain Park Road,
Mountain Park) in Surry County.
2. Discharge from said treatment works at the location specified on the attached map into an
unnamed tributary to Flat Branch [stream index 12-62-13-3; HUC 030401010502], currently
classified C waters in the Yadkin-Pee Dee River Basin.
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Permit NC0041866
Part I
Grade WW-1 Water Pollution Control System [15A NCAC 08G.0302]
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning on the effective date of the permit and lasting until expiration, the
permittee is authorized to discharge from outfall 001. Such discharges shall be limited and monitored'
by the Permittee as specified below:
PARAMETER LIMITS MONITORING REQUIREMENTS
[eDMR Code] Monthly Average Daily Maximum Measurement Sample Type Sample2
Frequency Location
Flow Influent or
0.0035 MGD Weekly Instantaneous
[50050] Effluent
BOD,5-day, 20°C[C0310] 20.0 mg/L 30.0 mg/L 2/Month Grab Effluent
Total Suspended Solids 30.0 mg/L 45.0 mg/L 2/Month Grab Effluent
[C0530]
NH3 as N 13.0 mg/L 35.0 mg/L 2/Month Grab Effluent
[C0610]
Dissolved Oxygen Daily average>6.0 mg/L Weekly Grab Effluent
[00300]
Dissolved Oxygen Weekly Grab Downstream
00300
[ ]
Fecal Coliform [31616] 200/100 ml 400/100 ml 2/Month Grab Effluent
(geometric mean)
Total Residual Chlorine(TRC)3 28 pg/L 2/Week Grab Effluent
[50060]
Temperature(°C) Weekly Grab Effluent
1 [00010]
Total Nitrogen [C0600] Quarterly Grab Effluent
(NO2+NO3+TKN)
Total Phosphorus Quarterly Grab Effluent
[C0665]
pH >6.0 and<9.0 standard units 2/Month Grab Effluent
[00400] — —
Footnotes:
1. The permittee shall submit discharge monitoring reports electronically using the Division's eDMR
application system [see A. (4)].
2. Downstream =at least 300 feet downstream from the outfall.
3. See A. (2) for instructions should the facility's UV system fail and an alternate means of disinfection is
required. The TRC limit and monitoring requirements apply only if chlorine compounds are used for
disinfection.
All samples collected should be from a representative discharge event.
There shall be no discharge of floating solids or visible foam in other than trace amounts
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Permit NC0041866
A. (2) TEMPORARY MEANS OF DISINFECTION
[NCGS 143-215.1 (b)]
In the event that the wastewater treatment plant's ultraviolet(UV)disinfection system should fail,underperform,
or otherwise be removed from effective service,the permittee or his agent should immediately inform the
Winston-Salem Regional Office of this development and discuss temporary,alternate means for disinfection of
the effluent.
If chlorine compounds are used as temporary means of disinfection,the total residual chlorine(TRC)
concentration of the effluent must be monitored on a daily basis while this method of disinfection is in use and
values must be reported on the discharge monitoring report. TRC in the effluent may not exceed 28 µg/L;
therefore,dechlorination methods may also be necessary to ensure protection of water quality in the receiving
stream.
The Division shall consider all effluent TRC values<50 µg/L to be in compliance with the permit. However,
the Permittee shall continue to record and submit all values reported by a North Carolina certified laboratory
(including field-certified), even if these values fall below 50 µg/L.
Use of a disinfection system other than the permitted UV system during circumstances not deemed as
emergency and/or temporary(replacement of lamps, lamp cleaning or maintenance,etc.)will be considered a
violation of the terms of this permit.
A. (3) NUTRIENT REOPENER FOR HIGH ROCK LAKE
[NCGS 143-215.1 (b)]
This permit may be reopened and modified to implement nutrient requirements in accordance with any future
TMDL and/or nutrient management strategy for High Rock Lake.
A. (3.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
[NCGS 143-215.1 (b)]
Federal regulations require electronic submittal of all discharge monitoring reports (DMRs)and
program reports. The final NPDES Electronic Reporting Rule was adopted and became effective on
December 21, 2015.
NOTE: This special condition supplements or supersedes the following sections within Part II of this
permit(Standard Conditions for NPDES Permits):
• Section B.(11.) Signatory Requirements
• Section D.(2.) Reporting
• Section D.(6.) Records Retention
• Section E.(5.) Monitoring Reports
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Permit NC0041866
D.(2.)and Section E.(5.)(a)
1. Reporting Requirements (Supersedes Section l
The permittee shall report discharge monitoring data electronically using the NC DWR's
Electronic Discharge Monitoring Report(eDMR) internet application.
Monitoring results obtained during the previous month(s) shall be summarized for each month and
submitted electronically using eDMR. The eDMR system allows permitted facilities to enter
monitoring data and submit DMRs electronically using the internet. The eDMR system may be
accessed at: https://deq.nc.gov/about/divisions/water-resources/edmr.
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the
facility being physically located in an area where less than 10 percent of the households have
broadband access,then a temporary waiver from the NPDES electronic reporting requirements
may be granted and discharge monitoring data may be submitted on paper DMR forms(MR 1, 1.1,
2, 3)or alternative forms approved by the Director. Duplicate signed copies shall be submitted to
the following address:
NC DEQ/Division of Water Resources/Water Quality Permitting Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh,North Carolina 27699-1617
See"How to Request a Waiver from Electronic Reporting" section below.
Monitoring results obtained during the previous month(s) shall be summarized for each month and
reported via the eDMR system no later than the last calendar day of the month following the
completed reporting period. Regardless of the submission method,the first DMR is due on the last
day of the month following the issuance of the permit or in the case of a new facility,on the last
day of the month following the commencement of discharge.
Starting on December 21,2025, the permittee must electronically report the following compliance
monitoring data and reports, when applicable:
• Sewer Overflow/Bypass Event Reports;
• Pretreatment Program Annual Reports;and
• Clean Water Act(CWA)Section 316(b)Annual Reports.
The permittee may seek an electronic reporting waiver from the Division(see"How to Request a
Waiver from Electronic Reporting" section below).
2. Electronic Submissions
In accordance with 40 CFR 122.41(1)(9),the permittee must identify the initial recipient at the time
of each electronic submission. The permittee should use the EPA's website resources to identify
the initial recipient for the electronic submission.
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Permit NC0041866
Initial recipient of electronic NPDES information from NPDES-regulated facilities means the
entity (EPA or the state authorized by EPA to implement the NPDES program)that is the
designated entity for receiving electronic NPDES data [see 40 CFR 127.2 (b)].
EPA plans to establish a website that will also link to the appropriate electronic reporting tool for
each type of electronic submission and for each state. Instructions on how to access and use the
appropriate electronic reporting tool will be available as well. Information on EPA's NPDES
Electronic Reporting Rule is found at:
https://www.federalregi ster.gov/documents/2015/10/22/2015-24954/national-pollutant-discharge-
elimination-system-npdes-electronic-reporting-rule
Electronic submissions must start by the dates listed in the"Reporting Requirements" section
above.
3. How to Request a Waiver from Electronic Reporting
The permittee may seek a temporary electronic reporting waiver from the Division. To obtain an
electronic reporting waiver, a permittee must first submit an electronic reporting waiver request to
the Division. Requests for temporary electronic reporting waivers must be submitted in writing to
the Division for written approval at least sixty (60)days prior to the date the facility would be
required under this permit to begin submitting monitoring data and reports. The duration of a
temporary waiver shall not exceed 5 years and shall thereupon expire. At such time,monitoring
data and reports shall be submitted electronically to the Division unless the permittee re-applies for
and is granted a new temporary electronic reporting waiver by the Division. Approved electronic
reporting waivers are not transferrable. Only permittees with an approved reporting waiver request
may submit monitoring data and reports on paper to the Division for the period that the approved
reporting waiver request is effective.
Information on eDMR and the application for a temporary electronic reporting waiver are found on
the following web page:
http://deq.nc.gov/about/divisions/water-resources/edmr
4. Signatory Requirements [Supplements Section B.(11.)(b)and Supersedes Section B.(11.)(d)1
All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part
II, Section B. (11.)(a)or by a duly authorized representative of that person as described in Part II,
Section B. (11.) (b). A person, and not a position, must be delegated signatory authority for eDMR
reporting purposes.
For eDMR submissions,the person signing and submitting the DMR must obtain an eDMR user
account and login credentials to access the eDMR system. For more information on North
Carolina's eDMR system, registering for eDMR and obtaining an eDMR user account, please visit
the following web page:
http://deq.nc.gov/about/divisions/water-resources/edmr
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Permit NC0041866
Certification. Any person submitting an electronic DMR using the state's eDMR system shall
make the following certification [40 CFR 122.22]. NO OTHER STATEMENTS OF
CERTIFICATION WILL BE ACCEPTED:
"I cent , under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief true, accurate,
and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
5. Records Retention [Supplements Section D. (6.)1
The permittee shall retain records of all Discharge Monitoring Reports, including eDMR
submissions. These records or copies shall be maintained for a period of at least 3 years from the
date of the report. This period may be extended by request of the Director at any time [40 CFR
122.41].
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NC0041866 - Mountain Park Elementary School Facility
44111111111
Location
USGS Quad:Elkin North, N.C. Latitude:
Receiving Stream:UT to Flat Branch 36°22'24"
Stream Class: C Longitude: Surry County
Subbasin:03-07-02 80°51'15" Aram Map not to scale